state university. though it's fun and games outside, inside the student center is serious business. doctors are checking young athletes for heart conditions that can predispose them to suddenly death. when the heart just stops. >> it's something we think is comprehensive, yet focused. it covers about 80 to 90% of the conditions that could potentially displace them to sudden cardiac arrest. >> her son died from sudden cardiac arrest. now she's spreading the word about early detection. >> and it's just the worst thing in the world to lose a child. and if he had heard him screaming, he still might be here with us. >> there are no risk factors with us. it is genetic and often herreditary. >> reporter: doctors say most people don't show any symptoms. that scares tony allen, whose son angelo is getting tested. >> we're getting him screened just in case. >> reporter: that's why they are having 600 people nationwide get tested to prevent another tragedy. >> it's your child's life. take a minute to do that. >>